Study of DsJD_{sJ} decays to D+KS0D^+K^0_S and D0K+D^0K^+ final states in pppp collisions

Collaboration
Jul, 2012
12 pages
Published in:
  • JHEP 10 (2012) 151
e-Print:
Report number:
  • CERN-PH-EP-2012-181,
  • LHCB-PAPER-2012-016
Experiments:

Citations per year

20122015201820212024024681012
Abstract: (arXiv)
A study of D^+\KS and D0K+D^0K^+ final states is performed in a sample of 1.0/fb of pppp collision data collected at a centre-of-mass energy of s=7\sqrt{s}=7 TeV with the \lhcb detector. We confirm the existence of the Ds1(2700)+D_{s1}^*(2700)^+ and DsJ(2860)+D_{sJ}^*(2860)^+ excited states and measure their masses and widths to be {eqnarray} m(D_{s1}^*(2700)^+) &=& 2709.2 \pm 1.9({stat})\pm\,\,\,4.5({syst}) {MeV}/c^2,\cr \Gamma(D_{s1}^*(2700)^+) &=& \,\,\,115.8 \pm 7.3({stat}) \pm12.1({syst}) {MeV}/c^2,\cr m(D_{sJ}^*(2860)^+) &=& 2866.1 \pm 1.0({stat}) \pm\,\,\,6.3({syst}) {MeV}/c^2,\cr \Gamma(D_{sJ}^*(2860)^+) &=& \,\,\,\,\,\,69.9 \pm 3.2({stat}) \pm\,\,\,6.6({syst}) {MeV}/c^2.\cr {eqnarray}
Note:
  • 12 pages, 3 figures
  • D/s1(2700): mass: measured
  • D/s1(2700): width: measured
  • p p: scattering
  • LHC-B
  • charmed meson: hadroproduction
  • charmed meson: hadronic decay
  • mass spectrum: (D+ K0(S))
  • mass spectrum: (D0 K+)
  • D/sJ*(2860): mass: measured
  • D/sJ*(2860): width: measured